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Commit 34b5579d authored by jasonhsing's avatar jasonhsing Committed by jessicatseng(45616)
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Setting jeita fv re-charge voltage for warm temp 

Root cause:
Jeita fv stop charging when battery temp is warm, but without use HW re-charge.

How to fix:
Add a dynamic re-charge function for warm temp's HW re-charge.

RiskArea:
Charging

Change-Id: I87695c1039a6f3c9fdf299f3e403238298f3a5d2
(cherry picked from commit 7c2d18a90e414aa596c500d0cd0d4e2351141c40)
parent ba3218fc

drivers/power/supply/qcom/smb5-lib.c

+42 −0
Original line number Diff line number Diff line
@@ -1236,6 +1236,38 @@ static int smblib_usb_irq_enable_vote_callback(struct votable *votable, 
	return 0;

}



//<--[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp BEGIN --

static int smblib_jeita_rechg_voltage_vote_callback(struct votable *votable, void *data,

			int voltage, const char *client)

{

	struct smb_charger *chg = data;

	int rc = 0;

	u32 temp = VBAT_TO_VRAW_ADC((voltage/1000));



	temp = ((temp & 0xFF00) >> 8) | ((temp & 0xFF) << 8);

	rc = smblib_batch_write(chg,

		CHGR_ADC_RECHARGE_THRESHOLD_MSB_REG, (u8 *)&temp, 2);

	if (rc < 0) {

		dev_err(chg->dev, "Couldn't configure ADC_RECHARGE_THRESHOLD REG rc=%d\n",

			rc);

		return rc;

	}

	/* Program the sample count for VBAT based recharge to 3 */

	rc = smblib_masked_write(chg, CHGR_NO_SAMPLE_TERM_RCHG_CFG_REG,

				NO_OF_SAMPLE_FOR_RCHG,

				2 << NO_OF_SAMPLE_FOR_RCHG_SHIFT);

	if (rc < 0) {

		dev_err(chg->dev, "Couldn't configure CHGR_NO_SAMPLE_FOR_TERM_RCHG_CFG rc=%d\n",

			rc);

		return rc;

	}



	dev_err(chg->dev, "jeita_rechg_voltage =%d\n", voltage);



	return rc;

}

//-->[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp END --



/*******************

 * VCONN REGULATOR *

 * *****************/
@@ -4586,6 +4618,16 @@ static int smblib_create_votables(struct smb_charger *chg) 
		return rc;

	}



//<--[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp BEGIN --

	chg->rechg_vol_votable = create_votable("RECHG_VOL", VOTE_MIN,

					smblib_jeita_rechg_voltage_vote_callback,

					chg);

	if (IS_ERR(chg->rechg_vol_votable)) {

		rc = PTR_ERR(chg->rechg_vol_votable);

		return rc;

	}

//-->[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp END --



	return rc;

}

drivers/power/supply/qcom/smb5-lib.h

+3 −0
Original line number Diff line number Diff line
@@ -356,6 +356,9 @@ struct smb_charger { 
	struct votable		*chg_disable_votable;

	struct votable		*pl_enable_votable_indirect;

	struct votable		*usb_irq_enable_votable;

//<--[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp BEGIN --

	struct votable		*rechg_vol_votable;

//-->[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp END --



	/* work */

	struct work_struct	bms_update_work;

drivers/power/supply/qcom/step-chg-jeita.c

100644 → 100755
+16 −0
Original line number Diff line number Diff line
@@ -80,6 +80,9 @@ struct step_chg_info { 
	struct votable		*fcc_votable;

	struct votable		*fv_votable;

	struct votable		*usb_icl_votable;

//<--[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp BEGIN --

	struct votable		*rechg_vol_votable;

//-->[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp END --

	struct wakeup_source	*step_chg_ws;

	struct power_supply	*batt_psy;

	struct power_supply	*bms_psy;
@@ -500,6 +503,10 @@ static int handle_step_chg_config(struct step_chg_info *chip) 
}



#define JEITA_SUSPEND_HYST_UV		50000

//<--[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp BEGIN --

#define JEITA_RECHG_HYST_UV		100000

//-->[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp END --



static int handle_jeita(struct step_chg_info *chip)

{

	union power_supply_propval pval = {0, };
@@ -561,6 +568,11 @@ static int handle_jeita(struct step_chg_info *chip) 
	if (rc < 0)

		fv_uv = 0;



//<--[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp BEGIN --

	if (!chip->rechg_vol_votable)

		chip->rechg_vol_votable = find_votable("RECHG_VOL");

//-->[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp END --



	chip->fv_votable = find_votable("FV");

	if (!chip->fv_votable)

		goto update_time;
@@ -597,6 +609,10 @@ static int handle_jeita(struct step_chg_info *chip) 


set_jeita_fv:

	vote(chip->fv_votable, JEITA_VOTER, fv_uv ? true : false, fv_uv);

//<--[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp BEGIN --

	vote(chip->rechg_vol_votable,

			JEITA_VOTER, true, (fv_uv -JEITA_RECHG_HYST_UV));

//-->[FairPhone][Charging][JasonHsing] Setting jeita fv re-charge voltage for warm temp END --



update_time:

	chip->jeita_last_update_time = ktime_get();